Model comparison
Grok 4 Fast vs Ministral 3B
Grok 4 Fast is the stronger model overall, scoring 39.0 to 25.6 on the Noometry Index.
Last verified . 3 shared benchmarks.
Mistral AISummary
- They share 3 benchmarks with published results for both. Grok 4 Fast scores higher in 3 categories and Ministral 3B in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 4 Fast leads 31.5 to 10.4.
- The biggest single-benchmark swing is DTBench: 82.7% for Grok 4 Fast and 51.7% for Ministral 3B.
- Ministral 3B has downloadable open weights; the other is API-only.
Side by side
| Grok 4 Fast | Ministral 3B | |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 39.0 | 25.6 |
| Released | 2025-09-19 | 2024-10-01 |
| Weights | Proprietary | Open |
| Context window | — | 128K |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.04 |
| Output $ / M tokens | — | $0.04 |
| Results tracked | 30 | 6 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Not comparable
Grok 4 Fast: 32.3 (#264), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| LMArena WebDev | 1160 | — |
| WeirdML | 42.9% | — |
| LMArena Coding | 1429 | — |
Agentic & Tool Use Not comparable
Grok 4 Fast: 29.3 (#80), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| τ²-bench Banking | 15.7% | — |
| Cybench | 30% | — |
| LMArena Search | 1171 | — |
Reasoning Grok 4 Fast leads
Grok 4 Fast: 22.5 (#179), Ministral 3B: 17.7 (#278)
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| DTBench | 82.7% | 51.7% |
| Epoch Capabilities Index | 144.21 | 118.08 |
| ARC-AGI-2 | 5.3% | — |
| Kagi LLM Benchmark | 66.1% | — |
| ARC-AGI-1 | 48.5% | — |
| LMArena Hard Prompts | 1413 | — |
| LMCA | — | 5.5% |
| ForecastBench | 60.5 | — |
Math Grok 4 Fast leads
Grok 4 Fast: 36.1 (#126), Ministral 3B: 24.5 (#257)
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| LMArena Math | 1419 | — |
| MATH Level 5 | — | 14.4% |
Knowledge Grok 4 Fast leads
Grok 4 Fast: 31.5 (#211), Ministral 3B: 10.4 (#297)
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| Vectara Hallucination Rate | 19.7% | 7.3% |
| GPQA Diamond | — | 25.3% |
| LMArena Expert | 1411 | — |
Multilingual Not comparable
Grok 4 Fast: 51.5 (#106), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| LMArena Non-English | 1397 | — |
| LMArena Chinese | 1458 | — |
| LMArena French | 1433 | — |
| LMArena German | 1383 | — |
| LMArena Japanese | 1358 | — |
| LMArena Korean | 1359 | — |
| LMArena Russian | 1387 | — |
| LMArena Spanish | 1414 | — |
Instruction Following Not comparable
Grok 4 Fast: 73.4 (#116), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| LMArena Instruction Following | 1388 | — |
Long Context Not comparable
Grok 4 Fast: 63.2 (#3), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| Fiction.LiveBench | 94.4% | — |
| LMArena Longer Query | 1415 | — |
Writing & Preference Not comparable
Grok 4 Fast: 60.2 (#96), Ministral 3B: —
| Benchmark | Grok 4 Fast | Ministral 3B |
|---|---|---|
| LMArena Text | 1407 | — |
| LMArena Creative Writing | 1388 | — |
| LMArena Multi-Turn | 1414 | — |
Frequently asked questions
Is Grok 4 Fast better than Ministral 3B?
Grok 4 Fast is the stronger model overall, scoring 39.0 to 25.6 on the Noometry Index.
How many benchmarks do Grok 4 Fast and Ministral 3B share?
3 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Ministral 3B has 6.